Which is not a typical program control instruction? (A) BR (B) JMP (C) SHL (D) TST

Which is not a typical program control instruction? (A) BR (B) JMP (C) SHL (D) TST
by

1 Answer

Answer :

(C) SHL
by

Related questions

Explain the difference between a JMP instruction and CALL instruction.

Description : Explain the difference between a JMP instruction and CALL instruction.

Last Answer : A JMP instruction permanently changes the program counter. A CALL instruction leaves information on the stack so that the original program execution sequence can be resumed.

Which of the following instruction perform jump indirect relative to DPTR a) JMP A+DPTR b) JMP DPTR c) JMP @A+DPTR d) SJMP A+DPTR

Description : Which of the following instruction perform jump indirect relative to DPTR a) JMP A+DPTR b) JMP DPTR c) JMP @A+DPTR d) SJMP A+DPTR

Last Answer : b) JMP DPTR

Suppose that the number of instructions executed between page faults is directly proportional to the number of page frames allocated to a program. If the available memory is doubled, the mean interval between page faults is also doubled. Further, consider that a normal instruction takes one micro second, but if a page fault occurs, it takes 2001 micro seconds. If a program takes 60 sec to run, during which time it gets 15000 page faults, how long would it take to run if twice as much memory were available? (A) 60 sec (B) 30 sec (C) 45 sec (D) 10 sec

Description : Suppose that the number of instructions executed between page faults is directly proportional to the number of page frames allocated to a program. If the available memory is doubled, the mean interval between page faults is also ... memory were available? (A) 60 sec (B) 30 sec (C) 45 sec (D) 10 sec

Last Answer : Answer: C Explanation: T = Ninstr x 1µs + 15,000 x 2,000 µs = 60s Ninstr x 1µs = 60,000,000 µs - 30,000,000 µs = 30,000,000 µs Ninstr = 30,000,000 The number of instruction ... doesn't mean that the program runs twice as fast as on the first system. Here, the performance increase is of 25%.

A ________ switch combines space-division and time-division technologies totake advantage of the bestof both. A) TST B) SSS C) TTT D) none of the above

Description : A ________ switch combines space-division and time-division technologies totake advantage of the bestof both. A) TST B) SSS C) TTT D) none of the above

Last Answer : TST

Why do you write ‘Integer.parseInt(br.readLine())’?

Description : Why do you write ‘Integer.parseInt(br.readLine())’?

Last Answer : A: The inputs in a java program comes in the form of String objects which are read using the br.readLine() function. Now if we want the input in integer form, we have to convert it into integer using the parseInt() function of the Integer wrapper class.

Why do you write BufferedReader br = new ……. ?

Description : Why do you write BufferedReader br = new ……. ?

Last Answer : A: To activate the Buffer memory for efficient input and output operations. ‘br’ is an object of the BufferedReader class.

........... is compulsory part of HTML. A) <br> B) <body> C) <tr> D) <img>

Description : ........... is compulsory part of HTML. A) B) C) D)

Last Answer : B)

The typical elements of process image are ..................... i) User data ii) System Data iii) User program iv) System stack A) i, iii and iv only B) i, ii, and iv only C) ii, iii, and iv only D) All i, ii, iii, and iv

Description : The typical elements of process image are ..................... i) User data ii) System Data iii) User program iv) System stack A) i, iii and iv only B) i, ii, and iv only C) ii, iii, and iv only D) All i, ii, iii, and iv

Last Answer : A) i, iii and iv only

Memory access in RISC architecture is limited to instructions a. CALL and RET b. PUSH and POP c. STA and LDA d. MOV and JMP

Description : Memory access in RISC architecture is limited to instructions a. CALL and RET b. PUSH and POP c. STA and LDA d. MOV and JMP

Last Answer : c. STA and LDA

Which of the following is allowed in a C Arithmetic Instruction? A) [ ] B) { } C) ( ) D) None of the above

Description : Which of the following is allowed in a C Arithmetic Instruction? A) [ ] B) { } C) ( ) D) None of the above

Last Answer : C) ( )

CAI stands for ................ A) Computer Aided Instruction B) Computer Aided information C) Cost Added Information D) Computer Aided Infrastructure

Description : CAI stands for ................ A) Computer Aided Instruction B) Computer Aided information C) Cost Added Information D) Computer Aided Infrastructure

Last Answer : B) Computer Aided information

Interrupt which arises from illegal or erroneous use of an instruction or data is (A) Software interrupt (B) Internal interrupt (C) External interrupt (D) All of the above

Description : Interrupt which arises from illegal or erroneous use of an instruction or data is (A) Software interrupt (B) Internal interrupt (C) External interrupt (D) All of the above

Last Answer : (B) Internal interrupt

Computers can have instruction formats with (A) only two address and three address instructions (B) only one address and two address instructions (C) only one address, two address and three address instructions (D) zero address, one address, two address and three address instructions

Description : Computers can have instruction formats with (A) only two address and three address instructions (B) only one address and two address instructions (C) only one address, two address and three address instructions (D) zero address, one address, two address and three address instructions

Last Answer : (D) zero address, one address, two address and three address instructions 

A byte addressable computer has a memory capacity of 2 m Kbytes and can perform 2 n operations. An instruction involving 3 operands and one operator needs a maximum of (A) 3m bits (B) m + n bits (C) 3m + n bits (D) 3m + n + 30 bits

Description : A byte addressable computer has a memory capacity of 2 m Kbytes and can perform 2 n operations. An instruction involving 3 operands and one operator needs a maximum of (A) 3m bits (B) m + n bits (C) 3m + n bits (D) 3m + n + 30 bits

Last Answer : (D) 3m + n + 30 bits

The advantage of ............... is that it can reference memory without paying the price of having a full memory address in the instruction. (A) Direct addressing (B) Indexed addressing (C) Register addressing (D) Register Indirect addressing

Description : The advantage of ............... is that it can reference memory without paying the price of having a full memory address in the instruction. (A) Direct addressing (B) Indexed addressing (C) Register addressing (D) Register Indirect addressing

Last Answer : (D) Register Indirect addressing

The RST 7 instruction in 8085 microprocessor is equivalent to: (A) CALL 0010 H (B) CALL 0034 H (C) CALL 0038 H (D) CALL 003C H

Description : The RST 7 instruction in 8085 microprocessor is equivalent to: (A) CALL 0010 H (B) CALL 0034 H (C) CALL 0038 H (D) CALL 003C H

Last Answer : (C) CALL 0038 H

A CPU handles interrupt by executing interrupt service subroutine................. (A) by checking interrupt register after execution of each instruction (B) by checking interrupt register at the end of the fetch cycle (C) whenever an interrupt is registered (D) by checking interrupt register at regular time interval

Description : A CPU handles interrupt by executing interrupt service subroutine................. (A) by checking interrupt register after execution of each instruction (B) by checking interrupt register ... cycle (C) whenever an interrupt is registered (D) by checking interrupt register at regular time interval

Last Answer : (A) by checking interrupt register after execution of each instruction

System calls are usually invoked by using: (A) A privileged instruction (B) An indirect jump (C) A software interrupt (D) Polling

Description : System calls are usually invoked by using: (A) A privileged instruction (B) An indirect jump (C) A software interrupt (D) Polling

Last Answer : (C) A software interrupt

The ............... addressing mode is similar to register indirect addressing mode, except that an offset is added to the contents of the register. The offset and register are specified in the instruction. (A) Base indexed (B) Base indexed plus displacement (C) Indexed (D) Displacement

Description : The ............... addressing mode is similar to register indirect addressing mode, except that an offset is added to the contents of the register. The offset and register are specified in the instruction. (A) Base indexed (B) Base indexed plus displacement (C) Indexed (D) Displacement

Last Answer : (D) Displacement

Pipelining improves performance by: (A) decreasing instruction latency (B) eliminating data hazards (C) exploiting instruction level parallelism (D) decreasing the cache miss rate

Description : Pipelining improves performance by: (A) decreasing instruction latency (B) eliminating data hazards (C) exploiting instruction level parallelism (D) decreasing the cache miss rate

Last Answer : (C) exploiting instruction level parallelism

The contents of Register (BL) and Register (AL) of 8085 microprocessor are 49H and 3AH respectively. The contents of AL, the status of carry flag (CF) and sign flag (SF) after executing 'SUB AL, BL' assembly language instruction, are (1) AL=0FH; CF=1; SF=1 (2) AL=F0H; CF=0; SF=0 (3) AL=F1H; CF=1; SF=1 (4) AL=1FH; CF=1; SF=1

Description : The contents of Register (BL) and Register (AL) of 8085 microprocessor are 49H and 3AH respectively. The contents of AL, the status of carry flag (CF) and sign flag (SF) after executing 'SUB AL, BL' assembly language instruction, are ( ... ; CF=0; SF=0 (3) AL=F1H; CF=1; SF=1 (4) AL=1FH; CF=1; SF=1

Last Answer : Answer: 3

Which of the following is a stable sorting algorithm? a) Merge sort b) Typical in-place quick sort c) Heap sort d) Selection sort

Description : Which of the following is a stable sorting algorithm? a) Merge sort b) Typical in-place quick sort c) Heap sort d) Selection sort

Last Answer : a) Merge sort

In a typical mobile phone system with hexagonal cells, it is forbidden to reuse a frequency band in adjacent cells. If 840 frequencies are available, how many can be used in a given cell? (A) 280 (B) 210 (C) 140 (D) 120

Description : In a typical mobile phone system with hexagonal cells, it is forbidden to reuse a frequency band in adjacent cells. If 840 frequencies are available, how many can be used in a given cell? (A) 280 (B) 210 (C) 140 (D) 120

Last Answer : Answer: A Explanation: Each cell has six other adjacent cells, in a hexagonal grid. If the central cell uses frequency group A, its six adjacent cells can use B, C, B, C, B, and C respectively. In other words, only 3 unique cells are needed. So the answer is 840/3 = 280 frequencies.

Which one of the following is not a software myth? (A) Once we write the program and get it to work, our job is done. (B) Project requirements continually change, but change can be easily accommodated because software is flexible. (C) If we get behind schedule, we can add more programmers and catch up. (D) If an organization does not understand how to control software projects internally, it will invariably struggle when it outsources software projects.

Description : Which one of the following is not a software myth? (A) Once we write the program and get it to work, our job is done. (B) Project requirements continually change, but ... not understand how to control software projects internally, it will invariably struggle when it outsources software projects.

Last Answer : (D) If an organization does not understand how to control software projects internally, it will invariably struggle when it outsources software projects.

A software program that infers and manipulates existing knowledge in order to generate new knowledge is known as: (A) Data Dictionary (B) Reference Mechanism (C) Inference Engine (D) Control Strategy

Description : A software program that infers and manipulates existing knowledge in order to generate new knowledge is known as: (A) Data Dictionary (B) Reference Mechanism (C) Inference Engine (D) Control Strategy

Last Answer : (C) Inference Engine

Which of the following are the principles tasks of the linker? I. Resolve external references among separately compiled program units. II. Translate assembly language to machine code. III. Relocate code and data relative to the beginning of the program. IV. Enforce access-control restrictions on system libraries. (A) I and II (B) I and III (C) II and III (D) I and IV

Description : Which of the following are the principles tasks of the linker? I. Resolve external references among separately compiled program units. II. Translate assembly language to machine code. III. Relocate code and data relative to the beginning of ... (A) I and II (B) I and III (C) II and III (D) I and IV

Last Answer : (B) I and III

Explain The Flow Of A Typical Instruction Word.?

Description : Explain The Flow Of A Typical Instruction Word.?

Last Answer : Answer :The flow of a typical Instruction word is as follows: The content of the program counter of 2 byte is transferred to the address register known as MAR ( memory address register ). This ... bus. Now the data is placed in the instruction register which will eventually decode and execute it.

Which register holds the current instruction to be executed. a. Instruction register b. Program register 9 Control register a None of these

Description : Which register holds the current instruction to be executed. a. Instruction register b. Program register 9 Control register a None of these

Last Answer : a. Instruction register

In program control the instruction is set for the statement in a: a. Parallel b. Sequence c. Both d. None

Description : In program control the instruction is set for the statement in a: a. Parallel b. Sequence c. Both d. None

Last Answer : b. Sequence

Who change the address in the program counter and cause the flow of control to be altered: a Shift manipulation b. Circular manipulation c. Program control instruction d. __ Allof these

Description : Who change the address in the program counter and cause the flow of control to be altered: a Shift manipulation b. Circular manipulation c. Program control instruction d. __ Allof these

Last Answer : c. Program control instruction

What is the control unit's function in the CPU? a. To transfer data to primary storage b. to store program instruction c. to perform logic operations d. to decode program instruction

Description : What is the control unit's function in the CPU? a. To transfer data to primary storage b. to store program instruction c. to perform logic operations d. to decode program instruction

Last Answer : b. to store program instruction

Is it compulsory to write String args[] when running a program in BlueJ?

Description : Is it compulsory to write String args[] when running a program in BlueJ?

Last Answer : A: No it is not compulsory when we are running it in BlueJ. But normally (in all other cases) it is always better to have it, as the JVM looks for the main method with a String array as a parameter.

What is significance of import java.io.* in your program?

Description : What is significance of import java.io.* in your program?

Last Answer : A: The line imports all the classes of the java.io package into the current program.

Match the following. a) Java 1) is a tool for debugging java program b) Javah 2) is a tool for creating C-like header files c) Javap 3) runs java bytecode d) jdb 4) prints java code representation A) a-3, b-2,c-1 B) a-3, b-1, c-4, d-2 C) a-1, b-2, c-3, d-4 D) a-2, b-1, c-3, d-4

Description : Match the following. a) Java 1) is a tool for debugging java program b) Javah 2) is a tool for creating C-like header files c) Javap 3) runs java bytecode d) jdb 4) prints java code representation A) a-3, b-2,c-1 B) a-3, b-1, c-4, d-2 C) a-1, b-2, c-3, d-4 D) a-2, b-1, c-3, d-4

Last Answer : B) a-3, b-1, c-4, d-2

State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Description : State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : C) i-true, ii-false

State true or false for Java Program. i) All class variables are instance variables ii) All protected methods are friendly methods A) i-false, ii-false B) i-false, ii-true

Description : State true or false for Java Program. i) All class variables are instance variables ii) All protected methods are friendly methods A) i-false, ii-false B) i-false, ii-true

Last Answer : B) i-false, ii-true

The compiled java program can run on any ..................... plateform having Java Virtual Machine (JVM) installed on it. A) program B) java C) hardware D) non java

Description : The compiled java program can run on any ..................... plateform having Java Virtual Machine (JVM) installed on it. A) program B) java C) hardware D) non java

Last Answer : C) hardware

System.in.read() is being used, the program must specify the .................. clause. A) throws.java.out.IOException B) throws.java.in.IOException C) throws.java.io.IOException D) throws.java.io.InException

Description : System.in.read() is being used, the program must specify the .................. clause. A) throws.java.out.IOException B) throws.java.in.IOException C) throws.java.io.IOException D) throws.java.io.InException

Last Answer : C) throws.java.io.IOException

When a program class implements an interface, it must provide behavior for A) two methods defined in that interface B) any methods in a class C) only certain methods in that interface D) all methods defined in that interface

Description : When a program class implements an interface, it must provide behavior for A) two methods defined in that interface B) any methods in a class C) only certain methods in that interface D) all methods defined in that interface

Last Answer : D) all methods defined in that interface

What would happen if "String[]args" is not included as argument in the main method. A) No error B) Compilation error C) Program won't run D) Program exit

Description : What would happen if "String[]args" is not included as argument in the main method. A) No error B) Compilation error C) Program won't run D) Program exit

Last Answer : C) Program won't run

The jdb is used to A) Create a jar archive B) Debug a java program C) Create C header file D) Generate java documentation

Description : The jdb is used to A) Create a jar archive B) Debug a java program C) Create C header file D) Generate java documentation

Last Answer : B) Debug a java program

The command javac A) Converts a java program into binary code B) Converts a java program into bytecode C) Converts a java program into machine language D) None of the above.

Description : The command javac A) Converts a java program into binary code B) Converts a java program into bytecode C) Converts a java program into machine language D) None of the above.

Last Answer : B) Converts a java program into bytecode

The command javac is used to A) debug a java program B) compile a java program C) interpret a java program D) execute a java program

Description : The command javac is used to A) debug a java program B) compile a java program C) interpret a java program D) execute a java program

Last Answer : B) compile a java program

A variable is defined within a block in a body of a function. Which of the following are true? A) It is visible throughout the function. B) It is visible from the point of definition to the end of the program. C) It is visible from the point of definition to the end of the block. D) It is visible throughout the block.

Description : A variable is defined within a block in a body of a function. Which of the following are true? A) It is visible throughout the function. B) It is visible from the point of definition to the end ... visible from the point of definition to the end of the block. D) It is visible throughout the block.

Last Answer : D) It is visible throughout the block.

Which of the following is true about the static member variable in C++. i) It is initialized to zero when the first object of its class is created. Other initialization is also permitted. ii) It is visible only within the class, but its lifetime is the entire program. A) i-True, ii-True B) ii-False, ii-True C) i-True, ii-False D) i-False, iii-False

Description : Which of the following is true about the static member variable in C++. i) It is initialized to zero when the first object of its class is created. Other initialization is also permitted. ii) It is visible only within ... , ii-True B) ii-False, ii-True C) i-True, ii-False D) i-False, iii-False

Last Answer : B) ii-False, ii-True

A ……………… is a program that secretly takes over another Internet-attached computer and then uses that computer to launch attacks. A) Worm B) Zombie C) Virus D) Trap doors

Description : A ……………… is a program that secretly takes over another Internet-attached computer and then uses that computer to launch attacks. A) Worm B) Zombie C) Virus D) Trap doors

Last Answer : B) Zombie

A ………………… attaches itself to executable files and replicates, when the infected program is executed, by finding other executable files to infect. A) Stealth virus B) Polymorphic Virus C) Parasitic Virus

Description : A ………………… attaches itself to executable files and replicates, when the infected program is executed, by finding other executable files to infect. A) Stealth virus B) Polymorphic Virus C) Parasitic Virus

Last Answer : C) Parasitic Virus

A ………….. is a program that can infect other programs by modifying them, the modification includes a copy of the virus program, which can go on to infect other programs. A) Worm B) Virus C) Zombie D) Trap doors

Description : A ………….. is a program that can infect other programs by modifying them, the modification includes a copy of the virus program, which can go on to infect other programs. A) Worm B) Virus C) Zombie D) Trap doors

Last Answer : B) Virus